DE1103508B - Process for the splitting of evaporable and non-evaporable liquid hydrocarbons - Google Patents

Description

GERMAN

It is known to use vaporizable liquid hydrocarbons in vapor form with the gasifying agent mixed feed to a reaction chamber. It is also known to be liquid hydrocarbons to be introduced into a reaction chamber by atomization.

It turns out that when the hydrocarbons are introduced by atomization during the subsequent Implementation of the soot formation causes difficulties. The suppression of this soot formation requires the application of a significant excess of oxygen during the reaction evaporated hydrocarbons premixed with the gasifying agent have a much more favorable course takes.

It has now been found that vaporizable and non-vaporizable liquid hydrocarbons can be used with significantly lower oxygen consumption, if you use the vaporizable hydrocarbons in vapor form mixed with all of the gasifying agent by one or more Burner in the empty or with an inert or catalytically active solid or with a solid Introduces fuel in the form of a bed or fluidized bed filled reaction space and at the same time the non-evaporable hydrocarbons into the mixture through a nozzle in the same burners atomized into it from vaporized hydrocarbons and gasifying agents.

In this way it is possible to evaporate under equally favorable conditions as in the implementation Hydrocarbons audit to be able to convert non-evaporable hydrocarbons.

Vaporizable hydrocarbons in the context of the invention are hydrocarbons which can be evaporated without leaving any residue, e.g. B. mineral spirits, liquefied gases and petroleum distillates.

Non-evaporable hydrocarbons within the meaning of the invention are hydrocarbons due to their high boiling point are difficult to evaporate or because of other technical difficulties a Exclude evaporation, or hydrocarbons that cannot be evaporated without leaving a residue, although they do contain more or less large proportions of vaporizable hydrocarbons, z. B. crude oils, residual oils and, above all, liquid hydrocarbons contaminated by non-evaporable components those that contain non-volatile resin formers.

Even hydrocarbons that contain vaporizable non-vaporizable components, such as. B. petroleum, are advantageously cleaved according to the present process. The hydrocarbon will in this case continuously fed to an evaporator, from which the evaporated fractions for themselves and the not ver process to split

of vaporizable and non-vaporizable

liquid hydrocarbons

Applicant:

Aniline & Soda Factory in Baden
ίο public limited company,

Ludwigshafen / Rhine

Dr. Walter Knobloch, Mannheim-Feudenheim,
Dr. Dietrich Balz and Dipl.-Ing. Wilhelm Schultz,

Ludwigshafen / Rhine,
have been named as inventors

steamed fractions from the sump are continuously fed to the burner.

The method is suitable e.g. B. for the production of synthesis gas and for the production of olefins. The process is generally carried out at temperatures from 600 to 2000.degree. One works in general at normal pressure or moderately increased pressure, e.g. B. up to 30 at. The oxygen as a gasification agent can be used both in pure form and in diluted form, e.g. B. with the addition of air, be used. Steam and / or carbon dioxide can be used as endothermic gasifying agents.

One way of carrying out the process is explained using the illustration.

The evaporable hydrocarbons enter the evaporator 1 and are transferred to the burner 2 supplied in vapor form, where it is with the gasification agent, which is via line 3 in the burner enters, mix and flow through the burner annulus 4. At the same time, non-evaporable occur Hydrocarbons through a preheater 5 into a centrally mounted pipe 6 of the burner and are atomized through the nozzle 7 into the mixture of vaporized hydrocarbons and gasifying agent. After exiting the burner, the entire mixture ignites in the reaction space 8.

The atomizing nozzle is withdrawn so far from the burner exit point that none Wetting of the burner inner wall occurs. The reaction space can be empty, but it can also be with a Solid, e.g. B. filled with solid fuel, such as coke, or an inert or catalytically active substance

10? 53 & / 260

be. The fuel bed can e.g. B. in the form of a bed or as a fluidized bed. Depending on The size or shape of the reaction space can be one or more burners.

Those necessary for the evaporation and heating of the non-evaporable hydrocarbons Heat is advantageously obtained directly or from the sensible heat of the gas leaving the reaction chamber obtained via waste heat steam.

IO

example

In a reaction space filled with coke (tapping gas generator) several similar Burners that are exposed to a mixture of oxygen and water vapor, liquid, non-vaporizable Hydrocarbons atomized. You only achieve throughputs of 3000 kg / hour, because with higher throughputs the soot content of the gas generated increases too much. This disadvantage would only be off by increasing the oxygen supply.

With the same amounts of oxygen and water vapor, however, a total of 5100 kg / hour of Kolilenwasserstoffen enforce if, according to the invention, 2000 kg / hour of liquid, inject non-vaporizable hydrocarbons into the burner and at the same time 3100 kg / hour vaporizable ones Hydrocarbons are supplied to the reaction chamber in vapor form and with premixing with the gasifying agents.

Claims (1)

Claim: Process for splitting vaporizable and non-vaporizable liquid hydrocarbons with oxygen and endothermic gasifying agents under normal or elevated pressure, characterized in that the vaporizable hydrocarbons are mixed in vapor form with the entire gasifying agent through one or more burners in the empty or with an inert or catalytically active one Solid or with a solid "fuel in the form of a bed or fluidized bed filled reaction space is introduced and at the same time the non-evaporable hydrocarbons are atomized through a nozzle in the same burners into the mixture of evaporated hydrocarbons and gasifying agent. 1 sheet of drawings © 109 538/260 3.61